Abstract

The present invention relates to a composition for producing a thermoplastic molding compound containing A) at least one aromatic polycarbonate and/or aromatic polyester carbonate containing at least 500 ppmw of phenolic OH groups, wherein the weight-average molecular weight Mw of component A determined by gel permeation chromatography at room temperature in dichloromethane as solvent using a polycarbonate calibration standard is in the range from 15 000 to 40 000 g/mol, B) at least one copolymer containing structural units derived from methyl methacrylate and 0.3% to 15% by weight, based on component B, of structural units derived from glycidyl methacrylate, wherein component B has a weight-average molecular weight Mw determined by gel permeation chromatography at room temperature in tetrahydrofuran as solvent using a polystyrene standard of 20 000 to 200 000 g/mol, wherein in component B the ratio of Mw in kg/mol to the weight fraction of glycidyl methacrylate-derived structural units in % by weight is in the range from 2 to 100, wherein the weight ratio of component A and component B is in the range from 30:70 to 90:10, and to a process for producing a molding compound from the composition, to a molding compound obtainable by the process, to the use of the molding compound for producing molded articles, to the molded articles themselves and to a process for producing the molded articles.

IPC Classes  ?

• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
• C08F 220/14 - Methyl esters
• C08F 220/32 - Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
• C08K 5/098 - Metal salts of carboxylic acids
• B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material 
• B29K 69/00 - Use of polycarbonates as moulding material

Abstract

The present invention relates to a method for stably storing an isocyanate composition, the stably stored isocyanate composition, and a polyurethane resin prepared from the isocyanate composition.

IPC Classes  ?

• C08K 5/07 - Aldehydes; Ketones
• C07C 263/18 - Separation; Purification; Stabilisation; Use of additives
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08K 5/14 - Peroxides
• C08K 5/23 - Azo-compounds

Abstract

The invention relates to a multilayer composite, containing a first polymeric layer which on a side is coated with a printing ink containing a polyurethane as binder, and a second layer which with a polyurethane dispersion as adhesive is joined at least partly with the side of the first polymeric layer which is coated with the printing ink containing a polyurethane as binder.

IPC Classes  ?

• C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
• B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
• B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
• B65D 65/40 - Applications of laminates for particular packaging purposes
• B65D 81/34 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs intended to be cooked or heated within the package
• C08J 7/04 - Coating
• C09D 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
• C09J 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group

Abstract

The present invention relates to a method for recovering raw materials (i.e. of polyols and optionally additionally amines) from polyurethane foams, comprising chemolysis. The chemolysis is characterised in that a polyurethane foam is reacted with an alcohol and water in the presence of a catalyst at a temperature of between 130° C. and 195° C., the mass ratio of (total) alcohol and (total) water to the polyurethane foam [i.e. m(alcohol+water)/m(polyurethane foam), where “m”=mass] being between 0.5 and 2.5, and the mass of the water being between 4.0% and 10% of the mass of the alcohol. The catalyst comprises a metal salt selected from a carbonate, a hydrogen carbonate, an orthophosphate, a monohydrogen orthophosphate, a metaphosphate or a mixture of two or more of said metal salts.

IPC Classes  ?

• C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
• C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of acetophenone without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present invention provides a process for preparing polycarbonate.

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C07C 37/84 - Separation; Purification; Stabilisation; Use of additives by physical treatment by crystallisation
• C08G 64/30 - General preparatory processes using carbonates

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of benzene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present invention provides a process for preparing polycarbonate.

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C07C 37/84 - Separation; Purification; Stabilisation; Use of additives by physical treatment by crystallisation
• C08G 64/04 - Aromatic polycarbonates

Abstract

The present invention relates to a process for recovering raw materials from a polyurethane foam, comprising step (A), the providing of a polyurethane foam based on an isocyanate component and a polyol component, wherein the polyurethane foam comprises a cell structure containing one or more volatile accompanying substances, namely a component X selected from the group consisting of oxygen, a blowing agent, a disinfectant and a mixture of two or more of the above, wherein component X comprises at least oxygen, step (B), the chemolysis of the polyurethane foam with a chemolysis reagent, wherein the polyurethane foam is degassed before being contacted with the chemolysis reagent, wherein at least oxygen, but preferably all constituents of component X or any gaseous breakdown products thereof that have formed are removed from the chemolysis apparatus in gaseous form via a gas removal device at a pressure of not more than 960 mbar(abs.) and a temperature of not more than 120° C., so as to obtain a degassed polyurethane foam, followed by the reaction of the degassed polyurethane foam with the chemolysis reagent in the presence of a catalyst in an inert gas atmosphere and the workup of the product mixture obtained by the chemolysis, step (C), the obtaining of at least one polyol, and optionally step (D), the obtaining of at least one amine corresponding to an isocyanate of the isocyanate component.

IPC Classes  ?

• C08J 11/26 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing carboxylic acid groups, their anhydrides or esters
• C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups

Abstract

The invention relates to a housing assembly based on polycarbonate material, of which at least the front cover and the back cover are easily recyclable due to its separability into different parts for all components which are attached to the front cover or the back cover and which cannot be recycled together with the front cover or the back cover, respectively. Snap-fits, interference-fits, predetermined breaking points and other means are used for an easily detachable, but for use safe connection of the single parts.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H05K 5/00 - Casings, cabinets or drawers for electric apparatus

Abstract

An aqueous adhesive formulation; containing a mixture of: at least one partially crystallised or crystalline polyurethane having a fusion temperature of 35 to 80° C. and an enthalpy of fusion of ≥35 J/g as component A; at least one plasticiser as component B; at least one salt as component C; and optionally at least one further polymer as component D. The mixture contains: 30 to 94.9 wt. % component A; 5 to 45 wt. % component B; 0.001 to 3 wt. % component C; and optionally 0 to 30 wt. % component D, each based on the total of the amounts of the components A, B, C and optionally D present in the mixture.

IPC Classes  ?

• C09J 175/04 - Polyurethanes
• C09J 11/04 - Non-macromolecular additives inorganic
• C09J 11/08 - Macromolecular additives

Abstract

The present invention relates to composition at least including (A) at least one epoxy-group terminated polyoxazolidinone, derived from at least one polyisocyanate compound and at least one aliphatic polyepoxide compound, (B) at least one compound having at least one group that is reactive towards terminal epoxy-groups, and (C) at least one solvent. The molar ratio of the epoxy groups of the polyepoxide compound to the isocyanate groups of the polyisocyanate compound is 50:1 to 2.4:1. The at least one epoxy-group terminated polyoxazolidinone is present in an amount of 50 to 95% by weight, in respect of the solid content of the composition. The sum of all components in respect of the solid content of the composition adds up to 100% by weight and where the solid content of the composition is at least 35% by weight.

IPC Classes  ?

• C08G 59/04 - Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of alpha-methylstyrene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present invention provides a process for preparing polycarbonate.

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of 2-methyl benzofuran without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst, wherein at least part of the sulfur containing cocatalyst is neither covalently nor ionically bound to the ion exchange resin catalyst. Moreover, the present invention provides a process for preparing polycarbonate.

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C08G 64/04 - Aromatic polycarbonates

Abstract

The invention relates to a two-component coating system and a preparation method and use thereof, as well as grout or caulk comprising the coating system. The two-component coating system comprises component A comprising a polyaspartic acid ester and component B comprising a polyisocyanate, wherein the polyisocyanate has isocyanate functionality of not less than 4, and the polyisocyanate comprises allophanate groups and isocyanurate groups, and the ratio of moles of the allophanate groups to the sum of moles of the isocyanurate groups and the allophanate groups is of not less than 65:100. The two-component coating system of the present invention forms a coating with small bubble area and good resistance to yellowing and to stain resistance.

IPC Classes  ?

• C09D 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
• C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

Abstract

The present invention relates to a process for preparing bisphenol A in the presence of at least two impurities being selected from the group consisting of 2-methylbenzofurane, hydroxyacetone, alpha-methylstyrene, acetophenone, benzene and/or cumene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst, wherein at least part of the sulfur containing cocatalyst is not chemically bound to the ion exchange resin catalyst. Moreover, the present invention provides a process for preparing polycarbonate.

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C08G 64/24 - General preparatory processes using carbonyl halides and phenols

Abstract

A composite component having a piece of material which is elastic in particular and is composed of a foam material or an elastomer material or a silicone, where the piece of material is bonded, inextricably in particular, to a film sensor for measurement of one or more parameters, especially parameters of a human or animal body, having a piece of film with at least one electrical wire disposed on said piece of film, and having at least one measurement sensor which is preferably disposed on said piece of film and is connected to the electrical wire in an electrically conductive manner.

IPC Classes  ?

• A61B 5/263 - Bioelectric electrodes therefor characterised by the electrode materials
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
• B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

Abstract

The invention relates to a method for producing isocyanate-terminated, urethane group-containing prepolymers, comprising reacting a reaction mixture that contains a stoichiometric excess of at least one aliphatic and/or cycloaliphatic diisocyanate and a polyol composition having an OH number >400, characterized in that the reaction mixture is mixed with a specific power input of 0.5 kW/m3 to 40 kW/m3, relative to the total volume of the reaction mixture.

IPC Classes  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/78 - Nitrogen
• C09D 175/04 - Polyurethanes

Abstract

The present invention relates to a composition for producing a thermoplastic molding compound, the composition comprising the following constituents or consisting therefrom: A) at least one polymer selected from the group consisting of polycarbonate and polyester carbonate, B) at least one polyester, C) phosphorous acid, D) at least one phosphonite, and E) at least one sterically hindered phenol. Furthermore, the present invention relates to a method for producing a thermoplastic molding compound from the composition, to the molding compound itself, and to the use of the composition and the molding compound for producing molding bodies.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

A sensor unit for securing to a human or animal body, especially to the skin of the body, having a sensor portion that has a film sensor for measurement of one or more body parameters, having a piece of film that has at least one electrical wire disposed on said piece of film and having a measurement sensor that has electrically conductive connection to said wire and is preferably disposed on said piece of film, and having an electronics portion which is connected, preferably releasably, to said sensor portion and has an electronics unit for operation of said film sensor.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

Abstract

The present application relates to a heat-resistant semi-conductive thermoplastic resin composition and shaped articles made therefrom. The thermoplastic resin composition comprises the following components: an aromatic polycarbonate, a polyalkylene terephthalate, a conductive carbon black and a reinforcement material. The shaped article made from the thermoplastic resin composition according to the present invention has a good combination of heat-resistance, semi-conductivity and dimensional stability.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/04 - Carbon
• C08K 3/013 - Fillers, pigments or reinforcing additives

Abstract

The present invention relates to an aqueous polyurethane urea dispersion containing a polyurethane urea and a preparation process and use thereof, especially to the use in the field of coatings, adhesives or sealants, and the products obtained by coating, bonding or sealing with the polyurethane urea dispersion. The polyurethane urea of the aqueous polyurethane urea dispersion containing the polyurethane urea is obtained by the reaction of a system including the following components: a mixture of isocyanates, a polymer polyol, a monofunctional nonionic hydrophilic compound and a potentially anionic or anionic hydrophilic compound; said aqueous polyurethane urea dispersion has a viscosity of 5 s-18 s; relative to the total weight of said aqueous polyurethane urea dispersion, the amount of said polyurethane urea is 30 wt %-50 wt %. The aqueous polyurethane urea dispersion of the present invention has good compatibility with various organic solvents.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/48 - Polyethers
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds

Abstract

A process comprising at least the steps a) providing a reaction space containing a component including at least one polychlorine anion-containing compound, preferably at least one polychlorine anion-containing compound in the form of an ionic liquid, b) contacting carbon monoxide with said component in the reaction space and there reacting the carbon monoxide to form phosgene-containing product, c) optionally collecting the phosgene from the phosgene-containing product of step b), d) optionally reacting the phosgene from the phosgene-containing product of step b) or the collected phosgene from step c) with a phosgene-reactive component, makes it possible to prepare, in step b), a phosgene-containing product which contains less than 5.0% by weight of Cl2 base on its total weight.

IPC Classes  ?

• C01B 32/80 - Phosgene

Abstract

A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound with a bisepoxide compound in the presence of a catalyst, in a solvent, wherein the solvent (E) comprises at least one of a substituted or unsubstituted alkyl nitrile, a substituted or unsubstituted alkenyl nitrile, a substituted or unsubstituted cycloalkyl nitrile, a substituted or unsubstituted aryl nitrile, a substituted or unsubstituted alkylcycloalkyl nitrile, a substituted or unsubstituted alkylaryl nitrile, a substituted or unsubstituted hetercycloalkyl nitrile, a substituted or unsubstituted heteroalkyl nitrile, and a substituted or unsubstituted heteroaryl nitrile, preferably a substituted or unsubstituted aryl nitrile. The invention is also related to the resulting thermoplastic polyoxazolidinone.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic

Abstract

Described are reflective, titanium dioxide-containing polycarbonate compositions to which 0.001 wt. % to 0.25 wt. % glass flakes including a titanium dioxide coating are added to improve reflectance values, said glass flakes usually being used in larger quantities as effect pigments. Said compositions make it possible to produce brilliant white molded parts.

IPC Classes  ?

• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 3/40 - Glass
• C08K 9/02 - Ingredients treated with inorganic substances

Abstract

The invention relates to a method for producing phosgene, comprising at least the steps of: a) bringing a gas mixture containing carbon monoxide and chlorine into contact with a catalyst, the catalyst containing at least one ionic organic compound which contains monochloride anions and, on contact with chlorine, forms an ionic organic compound containing polychloride anions; b) converting the gas mixture into phosgene on the catalyst. With the invention, phosgene can be produced using less activation energy and in high yields without the use of conventional activated carbon catalysts.

IPC Classes  ?

• C01B 32/80 - Phosgene

Abstract

An adhesive composition includes a polyurethane polymer, a solvent and a co-solvent. The polyurethane polymer is an internally and/or externally hydrophilized thermoplastic polyurethane having a mass average molecular weight Mw, as determined by gel permeation chromatography against polystyrene standards using N,N-dimethyl acetamide as the eluent, of ≥50000 g/mol, the solvent is a polar-aprotic solvent such as MEK and the co-solvent is water. The polyurethane polymer, the solvent and the co-solvent are present in such amounts that they form a dispersion. The polyurethane polymer content is ≥10 weight-%, based on the total weight of the composition and the weight ratio of solvent to co-solvent is in a range of ≥1:1 to ≤4:1.

IPC Classes  ?

• C09J 175/06 - Polyurethanes from polyesters
• C09J 175/02 - Polyureas
• C09J 11/06 - Non-macromolecular additives organic
• C09J 11/04 - Non-macromolecular additives inorganic

Abstract

The present invention relates to an aqueous dispersion at least containing (A) at least one polyurethane, (B) at least one fresh sol and (C) optionally further additives, wherein the at least one polyurethane is anionically hydrophilized, to a process for producing the dispersion, to the use of the dispersion for producing an adhesive composition, to a corresponding adhesive composition, to an adhesive laminate containing at least one substrate bonded with this adhesive composition, to a process for producing an adhesive laminate and to the use of a fresh sol for achieving a thickening effect in an aqueous polyurethane dispersion.

IPC Classes  ?

• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/08 - Processes

Abstract

The present invention relates to a process for preparing a polyisocyanate, namely an isocyanate group-terminated polyol polyanthranilic acid ester. The process comprises the step of reacting an anthranilic acid derivative selected from anthranilic acid halide (in particular anthranilic acid chloride), isatoic anhydride or a mixture thereof with a first polyol of a number-average molar mass of at least 200 g/mol and a functionality in the range of 2 to 8, and obtaining, as a result, a polyamine (namely a polyol polyanthranilic acid ester with amine terminal groups) and reacting the polyamine with phosgene and obtaining, as a result, a polyisocyanate (namely an isocyanate group-terminated polyol polyanthranilic acid ester). The invention further relates to the polyisocyanates obtained in this way, their use in polyaddition reactions, and polyaddition products obtainable by these reactions.

IPC Classes  ?

• C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
• C07C 227/18 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
• C07C 265/12 - Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/77 - Polyisocyanates or polyisothiocyanates having hetero atoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur

Abstract

A process for producing thermoplastic polyoxazolidinones is provided. The process comprises copolymerization of a diisocyanate compound with a bisepoxide compound in the presence of a catalyst and a compound, wherein the compound is one or more compounds selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, cyclic carbonate, monofunctional alcohol, monofunctional amine preferred monofunctional epoxide, wherein the process is performed at reaction temperatures of ≥178° C. to ≤230° C., wherein the bisepoxide compound (B) comprises 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) and 4,4′-isopropylidenediphenol diglycidyl ether (4,4′ BADGE); and wherein the molar ratio of 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) is from ≥3 mol-% to ≤11 mol-% related to the sum of 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) and 4,4′-isopropylidenediphenol diglycidyl ether (4,4′ BADGE). A resulting thermoplastic polyoxazolidinone is also provided.

IPC Classes  ?

• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic

Abstract

The invention relates to a water-dispersible modified polyisocyanate and use thereof, especially as a crosslinking component in water-soluble or water-dispersible coating compositions. The water-dispersible modified polyisocyanate can be obtained by the reaction of a system comprising a water-dispersible polyisocyanate and an isocyanate-reactive component; wherein the viscosity of the water-dispersible modified polyisocyanate is 3000 mPa·s-11000 mPa·s, which is measured with a MV-DIN rotor according to DIN EN ISO 3219:1994-10 at 23° C. and a shear rate of 10 s−1. The modified polyisocyanate according to the present invention has good manual stirring behavior and good dispersibility, and the coating formed by the coating composition containing the modified polyisocyanate has high gloss and good transparency.

IPC Classes  ?

• C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
• C09D 175/04 - Polyurethanes

Abstract

The invention relates to a distillation unit (100 000) which is designed for a continuous distillation process and to a method for a continuous operation for separating a liquid substance mixture (10) into two to six liquid product flows (201, 202, . . . ) with different compositions and into a gaseous product flow (300). For this purpose, an evaporation unit (10 000) is provided consisting of multiple evaporation devices (10 000-1, 10 000-2, . . . ), wherein each evaporation device has a circuit device (1 200-1, 1 200-2, . . . ) for recirculating a sub-quantity of each of the liquid sump flows (22, 21, . . . ) of an evaporation device into the respective evaporation device, and each of the circuit devices additionally has a discharge device (1 300-1, 1 300-2, . . . ) for providing one of the liquid product flows (201, 202, . . . ).

IPC Classes  ?

• B01D 3/14 - Fractional distillation
• B01D 1/06 - Evaporators with vertical tubes
• B01D 3/32 - Other features of fractionating columns
• C07C 263/20 - Separation; Purification
• C07C 209/86 - Separation

Abstract

The invention relates to a process for producing hydrophilically modified polyisocyanates having a very low content of monomeric diisocyanates, to the polyisocyanates obtainable or obtained by said process and to the use thereof for producing polyurethane plastics. The invention further relates to coating compositions containing the nonionically hydrophilized polyisocyanates and to the substrates coated with these coating compositions.

IPC Classes  ?

• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C09D 175/04 - Polyurethanes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/78 - Nitrogen
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen

Abstract

What are described are titanium dioxide-containing thermoplastic compositions based on polycarbonate having high reflectance, to which, for further improving the reflectance, are added at least one graft polymer of (C1 to C8)-alkyl (meth)acrylate on a graft base from the group of acrylate rubbers, in particular one with core/shell structure based on butyl acrylate.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 5/42 - Sulfonic acids; Derivatives thereof
• G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Abstract

The invention relates to a filler-containing multi-layer structure on the basis of a polycarbonate composition, having a metal layer as a reflective layer and having a balanced property profile of CLTE, CLTE ratio, heat conductivity and lustre. This multi-layer structure can be used, inter alia, for reflectors or as a mirror element in head-up displays. Expanded graphite and burned silicon dioxide are contained as fillers. In the composition provided according to the invention, there is no need for an additional heat sink when implementing the component.

IPC Classes  ?

• G02B 5/08 - Mirrors
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The invention provides a process for producing polyurethane foams or hydrogels, in which compositions including A) isocyanate-functional prepolymers obtainable by the reaction of A1) low molecular weight diisocyanates of molar mass from 140 to 278 g/mol, with A2) polyalkylene oxides having an OH functionality of two or more, A3) more than 1% by weight of C2 to C12 diols based on total amount of isocyanate-reactive components wherein component A3) differs from component A2), B) water or a nonaqueous isocyanate-reactive component in an amount of at least 2% by weight, based on the total weight of the composition are provided, optionally foamed and cured wherein the isocyanate containing components do not exceed a residual diisocyanate content of 8% by weight, based on the total amount of the polyurethane foam or hydrogel. These foams or hydrogels are used in wound dressings, cosmetic articles or incontinence products.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• A61L 15/42 - Use of materials characterised by their function or physical properties
• A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
• A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
• C08G 18/16 - Catalysts
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/48 - Polyethers
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The present disclosure is direct to titanium dioxide-containing, polycarbonate-based thermoplastic compositions that contain epoxidized triacylglycerol. These compositions are suitable for reflectors. The compositions described in the present disclosure have an improved reflectance and a lower yellowness index as compared to reference compositions that do not contain epoxidized triacylglycerol. The epoxidized triacylglycerol may be in the form of epoxidized soybean oil.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 5/50 - Phosphorus bound to carbon only
• C08K 5/42 - Sulfonic acids; Derivatives thereof

Abstract

An adhesive composition includes a polyurethane polymer, a solvent and a co-solvent. The polyurethane polymer is an internally and/or externally hydrophilized thermoplastic polyurethane having an Mw of ≥50000 g/mol. The solvent is a polar-aprotic solvent. The co-solvent is selected from water, a primary alcohol having ≤10 carbon atoms, a vicinal diol or a mixture of at least two of the aforementioned compounds. The solvent and the co-solvent are present in such amounts that they form a homogenous mixture without the formation of a second phase when combined together at 20° C. The hydroxyl group content is ≥1 weight-%, based on the total weight of the composition. The polyurethane polymer content is ≥10 weight-%, based on the total weight of the composition and the composition forms a single continuous liquid phase. Examples for solvent/co-solvent combinations are methylethyl ketone (MEK) and water or MEK and ethanol.

IPC Classes  ?

• C09J 175/06 - Polyurethanes from polyesters
• C09J 11/06 - Non-macromolecular additives organic
• C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/66 - Compounds of groups , , or
• C08K 5/5398 - Phosphorus bound to sulfur

Abstract

Provided is a layer structure, preferably a security form in a book cover, particularly preferably a security form in a book cover for identification or security documents, comprising at least a) a first radiation-engravable layer a) containing at least one polymeric material; and b) at least one further layer b) containing at least one polymeric material, preferably a thermoplastic elastomer, preferably a thermoplastic polyurethane with a hardness of ≥40 Shore A according to DIN ISO 7619-1-2012-2 to ≤95 Shore D according to DIN ISO 7619-1-2012-2; wherein the further layer b) overlies the first layer a) at least partly to form an overlapping region, and wherein a coherent engraving partly extends in the overlap region, preferably in the further layer b), and partly in the portion of layer a) that extends outside the overlap region, most preferably exclusively in the further layer b). The invention also relates to a method for producing this layer structure and to a laminate comprising such a layer structure and to the use of the layer structure in a security document.

IPC Classes  ?

• B42D 25/24 - Passports
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials
• B42D 25/41 - Marking using electromagnetic radiation

Abstract

The present disclosure is directed to titanium dioxide-containing, polycarbonate-based thermoplastic compositions that contain metal oxide-containing mica. The metal oxide-containing mica may be provided in very low amounts. The titanium dioxide-containing polycarbonate-based thermoplastic compositions are suitable for reflectors. The addition of mica results in improved reflectance values as compared to the same mixtures without mica component.

IPC Classes  ?

• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 9/02 - Ingredients treated with inorganic substances

Abstract

The present invention relates to a multishaft extruder having screw shafts that rotate in the same sense and at the same speed, wherein these screw shafts each have at least one region having a special arrangement of screw elements, wherein the screw elements have an asymmetrical cross-sectional screw profile. In this case, these in each case at least one regions are situated directly opposite on directly adjacent screw shafts. The present invention also provides for the use of the extruder of the invention for processing or production of plastic or viscoelastic masses.

IPC Classes  ?

• B29C 48/405 - Intermeshing co-rotating screws
• B29C 48/605 - Screws - characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
• B29C 48/65 - Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
• B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
• B29C 48/27 - Cleaning; Purging; Avoiding contamination
• B29C 48/25 - Component parts, details or accessories; Auxiliary operations

Abstract

The present invention relates to a housing for a multifunctional electronic device and a method for preparing the same. The housing for a multifunctional electronic device comprises an upper cover and a lower cover fixed together to form an internal space, wherein the upper cover comprises a first layer (21, 31, 41, 51, 61) formed of a first thermoplastic material, said first layer (21, 31, 41, 51, 61) having a thickness in the range of 0.8 mm to 1.5 mm and comprising at least two functional components integrated thereon; the lower cover comprises a second layer (11, 23, 34, 44, 57, 68) formed of a second thermoplastic material, said second layer (11, 23, 34, 44, 57, 68) having a thickness in the range of 2 mm to 4 mm; and the housing for the multifunctional electronic device comprises at least 90 wt % of the thermoplastic materials, relative to the total weight of the housing. Through the thin-layer design of the upper cover and the material selection of the upper and lower covers, the housing of the present invention achieves desirable heat dissipation performance and signal transmission performance. Meanwhile, the electronic device housing of the present invention has at least two functional components integrated to the upper cover, thus making the electronic device both small and slim.

IPC Classes  ?

• H05K 5/00 - Casings, cabinets or drawers for electric apparatus
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

In a golf ball having a rubber core of at least one layer and a cover of at least one layer that encases the core, at least one layer of the cover is formed of a resin composition which includes (A) a polyurethane or a polyurea, (B) an alkyl methacrylate/alkyl acrylate copolymer, and (C) a fatty acid amide. The golf ball has an excellent mold releasability during molding of the cover while retaining a good spin rate on approach shots, scuff resistance and paint film durability.

IPC Classes  ?

• A63B 37/00 - Solid balls; Marbles

Abstract

The invention relates to a method for recovering raw materials from polyurethane products, having the steps of: (A) providing a polyurethane product based on an isocyanate component and a polyol component; (B) reacting the polyurethane product with an alcohol in the presence of a catalyst, wherein a first product mixture containing alcohol, polyols, carbamates, and optionally water is obtained; (C) preparing the first product mixture, having the steps of: (C.I.) mixing the first product mixture obtained in step (B) with an organic solvent, which can be mixed with the alcohol used in step (B), optionally followed by a separation of solid components, thereby obtaining a second product mixture; (C.II) washing the second product mixture obtained in step (C.I) using an aqueous washing fluid, wherein carbamates contained in the second product mixture are hydrogenated partly while releasing amines and alcohol, and carrying out a phase separation into a first solvent phase, containing the organic solvent used in step (C.I) and polyols, and a first aqueous phase, containing water, alcohol, carbamates, and amines; and (C.III) processing the first solvent phase, thereby obtaining the polyols; and optionally (D) processing the first aqueous phase, thereby obtaining an amine which corresponds to an isocyanate of the isocyanate component.

IPC Classes  ?

• C08G 18/82 - Post-polymerisation treatment
• C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups

Abstract

A method and an equipment for preparing a pultruded polyurethane composite by a polyurethane pultrusion process, and the pultruded polyurethane composite obtained by the method and use thereof are provided.

IPC Classes  ?

• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
• C08G 18/67 - Unsaturated compounds having active hydrogen
• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die

Abstract

A method for preparing states on a quantum computer with given particle number and total spin squared quantum numbers by means of parametrized gates. Explicit decompositions of these gates are given for an embodiment of the method where fermions are mapped to the computational units of the quantum computer by means of a Jordan-Wigner mapping. As an example, the method is advantageous for the variational optimization of energies of chemical systems and the quantum computation of activation energies of chemical reactions.

IPC Classes  ?

• G06F 17/11 - Complex mathematical operations for solving equations
• G06N 10/20 - Models of quantum computing, e.g. quantum circuits or universal quantum computers

Abstract

The invention relates to an apparatus and a method for performing electrolysis with an originally oxygen-containing alkali hydroxide solution as an electrolyte precursor, wherein the pressure and temperature of the alkali hydroxide solution and the O2 content thereof are set.

IPC Classes  ?

• C25B 15/029 - Concentration
• C25B 15/027 - Temperature
• C25B 9/15 - Flow-through cells
• C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes

Abstract

-- The present invention relates to a process for preparing a polyestercarbonate proceeding from cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to the polyestercarbonate prepared by the process and also to a molding compound and a molded article including the polyestercarbonate. The process according to the invention is a direct synthesis in which all the structural elements that form the subsequent polyestercarbonate are already present as monomers in the first process step.

IPC Classes  ?

• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
• C08G 63/87 - Non-metals or inter-compounds thereof

Abstract

The present invention relates to a polycarbonate composition including the following components: A) 80-97.5 parts by weight of aromatic polycarbonate; B) 0.1-0.3 part by weight of metal organic sulfonate; C) 0.3-0.7 parts by weight of anti-dripping agent; D) 0.1-4 parts by weight of hydrolysis stabilizer; and E) 2-7 parts by weight of polysilsesquioxane. The total amount of the composition is 100 parts by weight. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has a good combination of hydrolysis resistance and flame retardance.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

The present invention relates to a multi-layer body comprising in this order, (I) a substrate layer made of a specific thermoplastic polycarbonate molding compound, (II) at least one layer made of a colorant or a colorant composition and (III) a film. The present invention also relates to a lighting unit, comprising the multi-layer body and a light source, to a method for producing the multi-layer body, and to the use of the specific thermoplastic polycarbonate molding compound as a substrate layer of a multi-layer body of this type.

IPC Classes  ?

• B32B 7/023 - Optical properties
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
• F21V 9/08 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for reducing intensity of light
• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08J 5/18 - Manufacture of films or sheets

Abstract

Disclosed are HCFO-containing isocyanate-reactive compositions that include a tertiary amine oxide catalyst. Also described are foam-forming compositions containing such isocyanate-reactive compositions, rigid foams made using such foam-forming compositions, and methods for producing such foams, including use of such foams as insulation in discontinuous foam panel applications. The isocyanate-reactive composition can exhibit a long shelf life, be shelf-stable, and produce foam with good physical properties.

IPC Classes  ?

• C08G 18/48 - Polyethers
• C08G 18/20 - Heterocyclic amines; Salts thereof
• C08G 18/08 - Processes
• C08K 5/02 - Halogenated hydrocarbons

Abstract

A method for stably storing an isocyanate composition comprising A1) one or more polyisocyanates and A2) at least one free radical initiator is provided. The method comprises adding a component A3) comprising at least one free radical inhibitor into the isocyanate composition. An isocyanate composition and a polyurethane resin prepared from the isocyanate composition is also provided.

IPC Classes  ?

• C08K 5/00 - Use of organic ingredients
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen

Abstract

A process for producing a thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) is one or more compounds selected from the group consisting of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein bisepoxide compound (B) comprises an epoxy-terminated oxazolidone-based prepolymer. The invention is also related to the resulting thermoplastic polyoxazolidinone.

IPC Classes  ?

• C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/16 - Catalysts
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic

Abstract

The invention relates to a method for separating waste polyurethane foams, wherein for each polyurethane sample (1) of a supply stream (2) comprising polyurethane samples (1) from waste at least one respective spectrum (3) is recorded, wherein the at least one respective spectrum (3) is recorded by near-infrared spectroscopy, wherein each polyurethane sample (1) of the supply stream (2) is classified by a classification algorithm (5), which classification algorithm (5) is based on machine learning, based on the respective at least one spectrum (3) into a respective class (8a-e) of at least two classes (8a-e), wherein the supply stream (2) comprising polyurethane samples (1) is separated into at least two streams (11a-e) according to the classification into the respective class (8a-e) and wherein each class (8a-e) corresponds to a type of polyurethane. The invention also relates to a system for separating waste polyurethane foams.

IPC Classes  ?

• B29B 17/02 - Separating plastics from other materials
• B07C 5/342 - Sorting according to other particular properties according to optical properties, e.g. colour

Abstract

The invention relates to a method for producing a poly(anthranilamide) via the polymerisation of isatoic anhydride, preferably in the presence of a solvent, on a starter at a reaction temperature in the region of 110° C. to 300° C., wherein the starter comprises an aliphatic mono- or diamine with 5 to 13 carbon atoms, an araliphatic mono- or diamine with 7 to 15 carbon atoms, an aromatic diamine with 6 to 13 carbon atoms, a carboxylic acid amide of formula Ar—(C═O)NHR, where Ar represents an aromatic group substituted with an amine NH— or NH2 group and R represents an aromatic or aliphatic group, or a mixture of the above-mentioned starters, and wherein the solvent, if used, comprises an organic solvent, which is in liquid form at the reaction temperature, an ionic liquid or a mixture of these solvents, obtaining a poly(anthranilamide) based on the starter. The invention also relates to the poly(anthranilamide) obtained with the method according to the invention and to the use thereof in the production of fibres or composite materials.

IPC Classes  ?

• C08G 69/16 - Preparatory processes
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof

Abstract

A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) independently comprises at least one of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein the process is in the absence of a solvent (G) with a boiling point higher than 200° C., preferably higher than 190° C. and more preferably higher than 180° C. at 1 bar (absolute). The invention is also related to the resulting thermoplastic polyoxazolidinone.

IPC Classes  ?

• C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/16 - Catalysts

Abstract

The present invention relates to polyurethane-reactive systems for producing pultrudates containing reinforcing fibers, and their use.

IPC Classes  ?

• C08G 18/48 - Polyethers
• C08K 5/101 - Esters; Ether-esters of monocarboxylic acids
• C08K 3/04 - Carbon
• C08K 5/353 - Five-membered rings
• C08K 7/06 - Elements
• C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic

Abstract

The invention relates to a polyurethane composition for preparing composites, a polyurethane composite obtained by the preparation and a method for preparing the polyurethane composite. The polyurethane composition comprises: a) an isocyanate component; b) an isocyanate-reactive component; c) a radical reaction initiator and d) an organometallic catalyst; wherein the hydroxyl value of the component b) isocyanate-reactive component is 200 mgKOH/g to 700 mgKOH/g, and the molar ratio of isocyanate groups to hydroxyl groups of the composition is 0.6 to 1.5. The polyurethane composition of the present invention has the advantages of long pot life and simple operation process. The polyurethane composite comprising the polyurethane resin matrix prepared by the polyurethane composition of the present invention has both excellent weather resistance and mechanical strength.

IPC Classes  ?

• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/67 - Unsaturated compounds having active hydrogen
• C08G 18/36 - Hydroxylated esters of higher fatty acids
• C08K 7/24 - Expanded, porous or hollow particles inorganic
• C08K 7/14 - Glass
• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• C08G 18/66 - Compounds of groups , , or

Abstract

The present invention relates to a process of preparing a poly(anthranilamide) comprising the steps: (A) providing an anthranilate, and (B) reacting the anthranilate by polycondensation and separation of the alcohol on which the anthranilate is based in the presence of a catalyst to poly(anthranilamide), the poly(anthranilamides) obtained in this way and their use in the production of fibers of composite materials.

IPC Classes  ?

• C08G 69/12 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from amino carboxylic acids with both amino and carboxylic groups aromatically bound
• C08G 69/04 - Preparatory processes

Abstract

The present invention relates to a process for purifying a wastewater stream WW1 contaminated with nitrobenzene, comprising (I) stripping of the wastewater stream WW1 with a stripping gas SG1 in a continuously operated stripping column to obtain a wastewater stream WW2 which contains nitrobenzene in a concentration reduced relative to WW1 (cNB,WW2), (II) further purification of the wastewater stream WW2 in a wastewater treatment plant, wherein a target value (cNB,WW2,TARGET) is specified for the concentration of nitrobenzene in the wastewater stream WW2, which is greater than zero but takes into account the requirements of the wastewater treatment plant for the maximum content of nitrobenzene in the wastewater streams supplied thereto, wherein, for at least one combination of specified boundary conditions of (a) nitrobenzene concentration in WW1, (b) the temperature of WW1, and (c) the temperature of SG1, a set of linear mathematical relationships of the type mSG1=x·mWW1 is stored in a database, which linear mathematical relationships define a range of concentrations of nitrobenzene in WW2, wherein the set comprises, in addition to a mathematical relationship (0) which corresponds to the target value cNB,WW2,TARGET, at least a first mathematical relationship (1) for a first value of cNB,WW2, which corresponds to 98% of the target value cNB,WW2,TARGET, and a second linear mathematical relationship (2) for a second value of cNB,WW2, which corresponds to 102% of the target value cNB,WW2,TARGET, and wherein the flow rate of the stripping gas is adapted to the flow rate of the wastewater WW1 such that the flow rate of WW1 is within a range of values (AB) that is generated by the first mathematical relationship (1) and the second mathematical relationship (2) at the respective flow rate of WW1, and controlling the concentration of nitrobenzene in WW2 (cNB,WW2) by adjusting the flow rate of stripping gas SG1 accordingly in the event of a measured actual value of this concentration which is outside a window of >98% to <102% of the target value.

IPC Classes  ?

• C02F 1/00 - Treatment of water, waste water, or sewage
• B01D 3/34 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
• B01D 3/38 - Steam distillation
• B01D 3/42 - Regulation; Control
• C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
• B01D 3/26 - Fractionating columns in which vapour and liquid flow pass each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction

Abstract

The present invention relates to isocyanate-terminated prepolymers based on polyoxymethylene-polyoxyalkylene block copolymers, to a process for their preparation, and to the use of these isocyanate-terminated prepolymers as isocyanate components in 1- and 2-component systems for coatings, adhesives and sealants.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• C08G 18/30 - Low-molecular-weight compounds
• C09J 175/08 - Polyurethanes from polyethers

Abstract

The present invention relates to polyphosphazenes, polyurethanes based on these polyphosphazenes, methods for their manufacture and hydrogels based on the polyurethanes. The invention further relates to the use of the hydrogels in medical, veterinary and agricultural applications. The terminal ends of the polyphosphazenes bear NCO-reactive hydrogen atoms for reaction with polyisocyanates.

IPC Classes  ?

• C08G 18/64 - Macromolecular compounds not provided for by groups
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/48 - Polyethers
• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• C08G 79/025 - Polyphosphazenes

Abstract

P1 of the product stream P1.

IPC Classes  ?

• B01D 3/42 - Regulation; Control
• C07C 209/86 - Separation
• B01D 3/32 - Other features of fractionating columns

Abstract

The present invention relates to a moulding compound containing: A) at least one polymer selected from the group consisting of polycarbonate and polyester carbonate; B) a polymer containing B1) at least one rubber-modified vinyl(co)polymer containing B1.1) 80 to 95 wt. %, based on B1, of at least one vinyl monomer and B1.2) 5 to 20 wt. %, based on B1, of one or more rubber-elastic polybutadiene-containing graft foundations, wherein B1 contains polybutadiene-containing rubber particles, which are grafted with the vinyl monomers B1.1 and contain inclusions of vinyl(co)polymer consisting of the vinyl monomers B1.1, and a vinyl(co)polymer matrix which consists of the vinyl monomers B1.1 and is not bonded to these rubber particles and not enclosed in rubber particles, and optionally B2) further rubber particles, grafted with vinyl monomers, from B2.1) 5 to 75 wt. %, based on B.2, of at least one vinyl monomer grafted onto B2.2) 25 to 95 wt. %, based on B2, of one or more rubber-elastic graft foundations, wherein the weight ratio of the components B1 to B2 is at least 5:1; C) a master batch, which is solid at room temperature, containing C1) one or more copolymers containing structural units derived from an olefin and structural units derived from a polar comonomer; C2) a vulcanised silicone elastomer. The invention also relates to a method for preparing the moulding compound, to the use of the moulding compound for producing moulded bodies, and to the moulded bodies themselves.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
• C08L 83/04 - Polysiloxanes
• C08F 2/02 - Polymerisation in bulk
• C08F 2/22 - Emulsion polymerisation
• C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
• C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
• C08L 23/08 - Copolymers of ethene
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08J 3/12 - Powdering or granulating
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor

Abstract

The present invention relates to a method of manufacturing a solids-incorporating polymer comprising the steps of: I) providing an aqueous polymer dispersion, the dispersion comprising crystallizing polyurethane particles having a mean particle size of ≤500 nm and further comprising inorganic particles; II) storing the dispersion of step I) at a temperature of ≤0° C. until a precipitate is formed; III) Isolating the precipitate of step II) and IV) removing water from the isolated precipitate of step III), thereby obtaining a water-depleted precipitate. The invention also relates to a solid particulate composition which is obtainable by the method and the use of the composition as a build material in additive manufacturing processes, as a coating, an adhesive or as a rubber.

IPC Classes  ?

• C08J 3/215 - Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
• C08J 3/14 - Powdering or granulating by precipitation from solutions
• C08K 3/36 - Silica
• C09D 175/06 - Polyurethanes from polyesters
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/40 - Additives
• C09J 175/06 - Polyurethanes from polyesters
• C09J 11/04 - Non-macromolecular additives inorganic

Abstract

The present invention relates to polyphosphazenes, polyurethanes based on these polyphosphazenes, methods for their manufacture and hydrogels based on the polyurethanes. The invention further relates to the use of the hydrogels in medical, veterinary and agricultural applications. The terminal ends of the polyphosphazenes bear NCO-reactive hydrogen atoms for reaction with polyisocyanates.

IPC Classes  ?

• C08G 18/64 - Macromolecular compounds not provided for by groups
• C08G 79/025 - Polyphosphazenes
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08L 75/04 - Polyurethanes
• A01N 25/04 - Dispersions or gels
• A61K 47/34 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
• A61L 31/14 - Materials characterised by their function or physical properties
• A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

The invention relates to an adhesive composition, the preparation and use of said composition, and an article obtained by bonding using said composition. The adhesive composition comprises: a. an anionic aqueous polyurethane dispersion, which contains a polyurethane with enthalpy of fusion of at least 3 J/g, wherein the enthalpy of fusion is measured by DSC at 20° C.-100° C. of the first heating curve according to DIN 65467; and wherein said aqueous polyurethane dispersion has a hydroxyl content of 0.001% by weight to 0.085% by weight, relative to the total weight of the aqueous polyurethane dispersion; and b. an aqueous polyacrylate primary dispersion with a hydroxyl content of 0.5% by weight to 1.8% by weight, relative to the total weight of the aqueous polyacrylate primary dispersion; wherein the amount of the aqueous polyurethane dispersion is 30% by weight to 91% by weight, and the amount of the aqueous polyacrylate primary dispersion is 9% by weight to 70% by weight, the above weight percentages being relative to the total weight of the adhesive composition. The adhesive composition of the present invention has good high-temperature resistance.

IPC Classes  ?

• C09J 175/06 - Polyurethanes from polyesters
• C09J 5/06 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties

Abstract

A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) independently comprises at least one of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein the catalyst (C) is added in at least two portions (C-1) and (C-2). The invention is also related to the resulting thermoplastic polyoxazolidinone.

IPC Classes  ?

• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/16 - Catalysts

Abstract

The present invention relates to a flame-retardant polycarbonate composition comprising the following components: The present invention relates to a flame-retardant polycarbonate composition comprising the following components: A) 50-90 parts by weight of aromatic polycarbonate, B) 3-20 parts by weight of non-core-shell impact modifier, C) 2-15 parts by weight of at least one cyclic phosphazene of formula (V): The present invention relates to a flame-retardant polycarbonate composition comprising the following components: A) 50-90 parts by weight of aromatic polycarbonate, B) 3-20 parts by weight of non-core-shell impact modifier, C) 2-15 parts by weight of at least one cyclic phosphazene of formula (V): The present invention relates to a flame-retardant polycarbonate composition comprising the following components: A) 50-90 parts by weight of aromatic polycarbonate, B) 3-20 parts by weight of non-core-shell impact modifier, C) 2-15 parts by weight of at least one cyclic phosphazene of formula (V): where k is an integer from 1 to 10, the trimer content (k=1) being more than 98 mol %, based on component C, and where R are in each case identical or different and are an amine radical, C1-C8-alkyl in each case optionally halogenated, C1-C8-alkoxy, C5-C6-cycloalkyl in each case optionally substituted by alkyl and/or halogen, C6-C20-aryloxy in each case optionally substituted by alkyl and/or halogen, and/or hydroxyl, C7-C12-aralkyl in each case optionally substituted by alkyl and/or halogen, a halogen radical, or an OH radical, D) 0-30 parts by weight of filler, E) 0.05-5 parts by weight of antidripping agent; and F) 0-15 parts by weight of additional additives, the total weight of the composition is 100 parts by weight, preferably, the composition consists to at least 90 wt. %, more preferably at least 95 wt. %, most preferably 100 wt % of components A-F, relative to the total weight of the composition. The present invention relates to a flame-retardant polycarbonate composition comprising the following components: A) 50-90 parts by weight of aromatic polycarbonate, B) 3-20 parts by weight of non-core-shell impact modifier, C) 2-15 parts by weight of at least one cyclic phosphazene of formula (V): where k is an integer from 1 to 10, the trimer content (k=1) being more than 98 mol %, based on component C, and where R are in each case identical or different and are an amine radical, C1-C8-alkyl in each case optionally halogenated, C1-C8-alkoxy, C5-C6-cycloalkyl in each case optionally substituted by alkyl and/or halogen, C6-C20-aryloxy in each case optionally substituted by alkyl and/or halogen, and/or hydroxyl, C7-C12-aralkyl in each case optionally substituted by alkyl and/or halogen, a halogen radical, or an OH radical, D) 0-30 parts by weight of filler, E) 0.05-5 parts by weight of antidripping agent; and F) 0-15 parts by weight of additional additives, the total weight of the composition is 100 parts by weight, preferably, the composition consists to at least 90 wt. %, more preferably at least 95 wt. %, most preferably 100 wt % of components A-F, relative to the total weight of the composition. The present invention also relates to a shaped article produced from the composition. The polycarbonate composition according to the present invention has a good combination of flame retardancy, hydrolytic stability and impact resistance, meanwhile there is no feeding issue during its production.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
• C08L 85/02 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon; Compositions of derivatives of such polymers containing phosphorus
• C08K 7/14 - Glass
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene

Abstract

The present invention relates to the use of polyisocyanate compositions and trimerization catalysts for production of coatings by reaction injection molding, to the coatings obtained by the use and to correspondingly coated workpieces.

IPC Classes  ?

• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or

Abstract

The present invention relates to a method for operating a plant for continuous production of an isocyanate by converting a primary amine A with phosgene P whilst maintaining, based on the amino groups of the primary amine, a stoichiometric excess of phosgene in the presence of a solvent L in the liquid phase, using a first, adiabatically operated reaction chamber and a second, isothermally operated reaction chamber. The method is characterised in that a combination of measures, in particular the maintenance of a sufficiently high starting pressure and a sufficiently high starting temperature, is applied in order to bring the plant back into the target state, standard operation, starting from a state of interruption to production.

IPC Classes  ?

• C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
• C07C 263/20 - Separation; Purification

Abstract

The present invention relates to a water-based coating composition, the preparation and use of the composition, a two-component coating system comprising the composition and use thereof, and an article obtained by coating with the composition or the two-component coating system. The water-based coating composition comprises a water-based UV resin; a silane-treated nanosized silicon oxide compound; and a photoinitiator; wherein per kilogram of the solid constituent of the water-based UV resin contains not less than 3 mol of ethylenically unsaturated groups, and wherein the weight ratio of the solid constituent of the nanosized silicon oxide compound to the solid constituent of the water-based UV resin is 11:20 to 73:100. The coating layer formed by the water-based coating composition of the present invention has high hardness and good adhesion, and is particularly suitable for electronic, electrical and communication equipment in the 5G field.

IPC Classes  ?

• C09D 175/14 - Polyurethanes having carbon-to-carbon unsaturated bonds
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
• C09D 7/40 - Additives
• C09D 7/65 - Additives macromolecular
• C09D 5/02 - Emulsion paints
• C08J 7/04 - Coating

Abstract

A process for producing a polyoxymethylene-polyoxyalkylene copolymer is provided. The process comprises reacting a polymer formaldehyde compound of an alkylene oxide and a specific component (X) in the presence of a double metal cyanide (DMC) catalyst. A polyoxymethylene-polyoxyalkylene copolymer can be obtained by means of such a process and to the use of same for producing a polyurethane polymer.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 18/56 - Polyacetals

Abstract

The invention relates to a method for producing at least one metal amino alcoholate, at least comprising the following steps (A) providing at least one amino alcohol, (B) adding at least one basic compound to the at least one amino alcohol provided in step (A) in order to obtain at least one corresponding amino alcoholate, and (C) adding at least one metal halogenide to the mixture obtained in step (C) in order to obtain a corresponding metal amino alcoholate, wherein in step (C) the at least one metal halogenide is added as a solution in a protic solvent at a concentration of 2.0 to 35.0 wt. %; a solution containing at least one metal alcoholate obtained in this manner; the use of the solution to produce a composition; a corresponding composition; the use of said composition to produce single- or multi-layer paint structures; a method for single- or multi-layer coating of a substrate with a paint structure; and a substrate coated in this manner.

IPC Classes  ?

• C07F 7/22 - Tin compounds
• C07C 213/06 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton from hydroxy amines by reactions involving the etherification or esterification of hydroxy groups
• C08G 18/24 - Catalysts containing metal compounds of tin
• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• C09D 175/04 - Polyurethanes
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The invention relates to a method for producing a moulded part (50) by structural foam moulding, in which a polymer melt (18) is provided by melting a thermoplastic material, in which the polymer melt (18) is charged with a foaming agent (22) and in which the polymer melt (18) charged with the foaming agent (22) is injected under pressure into a cavity (26) of a mould (28), and so the polymer melt (18) fills the cavity (26) behind a melt front (34) running through the cavity (26), wherein the rate of injection at which the polymer melt (18) is injected into the cavity (26) of the mould (28) is set such that the internal pressure of the polymer melt (18) in the cavity (26), in a region (40) that follows a portion of the melt front (34) with a time delay of at most 0.15 seconds, is greater than the critical pressure of the foaming agent (22), at least at one point in time during the injection-moulding operation. The invention also relates to a moulded part (50) of an expanded thermoplastic material, wherein the moulded part (50) has a surface region with visual structuring formed by the expanded thermoplastic material of which the average ratio of the degrees of gloss measured in the direction of flow in relation to the degrees of gloss measured transversely to the direction of flow is below 1.9, preferably below 1.5, in particular below 1.2. The invention also relates to uses of such a moulded part.

IPC Classes  ?

• B29C 44/34 - Component parts, details or accessories; Auxiliary operations
• B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
• B29C 44/60 - Measuring, controlling or regulating
• B29B 7/00 - Mixing; Kneading
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent

Abstract

The invention relates to compositions containing A) at least one component having at least one uretdione group, B) at least one component having at least one hydroxyl group, C1) of at least one catalyst, containing a structural element of the general formula (I) and/or (II), wherein R1, R2, R3, R4, R5 and R6 independently of each other represent the same or different radicals meaning saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic, araliphatic or aromatic organic radicals with 1 to 18 carbon atoms that are substituted or unsubstituted and/or have heteroatoms in the chain, the radicals being capable of forming, even when combined with each other and optionally together with an additional heteroatom, rings with 3 to 8 carbon atoms that can optionally be further substituted, wherein R3, R4, R5 and R6 independently of each other can also represent hydrogen, and R7 represents hydrogen or a carboxylate anion (COO−), and C2) at least one catalyst containing at least one N,N,N′-trisubstituted amidine structure and having an amidine group content (calculated as CN2; molecular weight=40) of 12.0 to 47.0 wt.-%.

IPC Classes  ?

• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08G 18/20 - Heterocyclic amines; Salts thereof
• C08L 75/06 - Polyurethanes from polyesters
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

The present invention relates to a polyether-modified polyisocyanate composition, which is obtainable by reacting a system containing the following components: a) a polyisocyanate having an isocyanate group functionality of 2-4.5; b) a polyoxyalkylene monoether alcohol; and c) optionally a catalyst; the polyoxyalkylene monoether alcohol has a number-average molecular weight of 900 g/mol-2000 g/mol and an oxypropylene group content of 45 wt. %-100 wt. %, relative to the total weight of the oxyalkylene group of the polyoxyalkylene monoether alcohol; the system has an equivalent ratio of isocyanate group to hydroxyl group of 5:1-110:1; the polyisocyanate composition has the following characteristics: i) the average isocyanate functionality is 1.8-4.1; ii) the isocyanate group content is 8-20 wt. %; and iii) the amount of the polyoxyalkylene monoether structure is greater than 10 wt. % and less than 50 wt. %, for characteristics ii) and iii), relative to the total weight of the polyisocyanate composition.

IPC Classes  ?

• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C09D 175/08 - Polyurethanes from polyethers

Abstract

The present invention relates to a process for the treatment of thermoplastic polyurethane, to the treated thermoplastic polyurethane and to the use thereof.

IPC Classes  ?

• B29C 71/02 - Thermal after-treatment
• C08J 5/18 - Manufacture of films or sheets

Abstract

The present invention relates to a two-component coating composition, to a method for applying the composition and to the use of the composition, and to a product obtained by coating with the coating composition. The two-component coating composition contains an A-component containing a polyaspartic ester and a B-component containing a polyether-modified polyisocyanate, and the composition has a molar ratio of isocyanate groups to amino groups of 0.8:1-4:1. The two-component coating composition provided by the invention has the advantages of a long working time, quick drying, a high hardness and a high bubble-free film thickness.

IPC Classes  ?

• C09D 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/16 - Catalysts
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/48 - Polyethers

Abstract

The invention relates to a process for preparing a polyoxyalkylene carbonate polyol by reacting a polyoxyalkylene polyol with a cyclic carbonate in the presence of an amine catalyst. The invention further relates to polyoxyalkylene carbonate polyols obtainable using the method according to the invention and to a process for preparing polyurethanes by reacting the polyoxyalkylene carbonate polyols according to the invention with polyisocyanates.

IPC Classes  ?

• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyethers
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
• C08G 64/18 - Block or graft polymers

Abstract

The present invention relates to a flame-retardant polycarbonate composition comprising the following components, relative to the total weight of the composition: A) 40-60 wt. % of at least one aromatic polycarbonate, B) 30-50 wt. % of at least one polysiloxane-polycarbonate condensate, C) 0.5-5 wt. % of at least one cyclic phosphazene, D) 1-5 wt. % of at least one silicone-acrylate rubber based impact modifier, E) 0.3-3 wt % of aluminium hydroxide oxide, F) 0.1-1 wt. % of at least one anti-dripping agent, and G) 0.1-1 wt. % of at least one UV absorber. The present invention relates to a flame-retardant polycarbonate composition comprising the following components, relative to the total weight of the composition: A) 40-60 wt. % of at least one aromatic polycarbonate, B) 30-50 wt. % of at least one polysiloxane-polycarbonate condensate, C) 0.5-5 wt. % of at least one cyclic phosphazene, D) 1-5 wt. % of at least one silicone-acrylate rubber based impact modifier, E) 0.3-3 wt % of aluminium hydroxide oxide, F) 0.1-1 wt. % of at least one anti-dripping agent, and G) 0.1-1 wt. % of at least one UV absorber. The present invention also relates to a shaped article produced from the composition. The polycarbonate composition according to the present invention has a good combination of low-temperature impact performance, flame-retardancy, hydrolytic stability, anti-UV performance, and heat resistance.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08G 64/18 - Block or graft polymers
• C08K 5/5399 - Phosphorus bound to nitrogen
• C08K 3/22 - Oxides; Hydroxides of metals
• C08G 77/442 - Block- or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
• C08F 220/14 - Methyl esters
• C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids

Abstract

The present application relates to a polycarbonate composite article, a preparation method therefor, and use thereof. The polycarbonate composite article includes a foamed polycabonate layer and a non-foamed polycarbonate film layer on the foamed polycarbonate layer. The polycarbonate composite article according to the present invention has a reduced weight and improved signal penetration performance, and can be used as an antenna housing.

IPC Classes  ?

• C08J 9/228 - Forming foamed products
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

The present invention relates to a process for preparing a polyester carbonate on the basis of diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional cycloaliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molding body containing the polyester carbonate. The polyester carbonates according to the invention are characterized by a high proportion of bio-based structural motifs and good mechanical properties and molecular weights.

IPC Classes  ?

• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups

Abstract

The invention relates to a method for preparing a toluylene diamine mixture which, along with toluylene diamine (TDA), also contains a high-boiling fraction, such as the high-boiling fraction which is accumulated as a sump flow in the distillative preparation of product mixtures obtained by hydrogenating dinitrotoluene. The method has a step (A), namely preparing a TDA mixture containing, based on the total mass of the mixture, (1) TDA in a range of 5 mass % to 80 mass % and (2) a high-boiling fraction in a range of 20 mass % to 95 mass %; a step (B), namely distilling TDA off from the TDA mixture, thereby obtaining a liquid TDA-depleted method product, containing (1) TDA in a range of 0 mass % to 38 mass % and (2) a high-boiling fraction in a range of 62 mass % to 100 mass %; and a step (C) namely mixing water into the TDA-depleted method product in a mixing chamber, thereby obtaining a mixture mixed with water, wherein the temperature and quantity of the water to be mixed into the mixture and the temperature and quantity of the TDA-depleted method product are matched such that the resulting temperature of the mixture mixed with water ranges from 110° C. to 250° C., and the mixture mixed with water is provided as a single phase. The mixing chamber is supplied with a pressure which is greater than or equal to the water vapor partial pressure at the resulting temperature.

IPC Classes  ?

• C07C 209/88 - Separation of optical isomers

Abstract

The present invention relates to the production of plastics by crosslinking of blocked polyisocyanates. The plastics obtainable are characterized in that they are substantially free of urethane groups and the crosslinking of the monomers is predominantly effected by isocyanurate groups.

IPC Classes  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/80 - Masked polyisocyanates
• C08G 18/48 - Polyethers
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/16 - Catalysts
• C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture

Abstract

The present invention relates to a cosmetic composition comprising at least one aqueous polyurethane dispersion and 0.1 to 7.5% by weight, based on the at least one polyurethane dispersion, of a mixture comprising at least one alkanediol, to a process for production thereof, to the use thereof for application to the skin and/or hair, preferably on facial skin, and to a cosmetic process for cleansing and caring for the skin and/or hair and/or nails and/or for applying a decorative effect to the skin and/or hair and/or nails, comprising applying the cosmetic composition according to the invention to the skin and/or hair and/or nails and optionally thereafter removing the composition from the skin and/or hair and/or nails.

IPC Classes  ?

• A61K 8/87 - Polyurethanes
• A61K 8/34 - Alcohols
• A61Q 19/10 - Washing or bathing preparations
• A61Q 5/02 - Preparations for cleaning the hair
• A61Q 3/02 - Nail coatings

Abstract

Polycarbonate-based compositions containing polyether carbonate polyol are described. The compositions have an elevated transmittance in the VIS range as a result of the additive and further advantageous properties, for instance improved demolding characteristics. Even small amounts have a significant impact.

IPC Classes  ?

• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08G 64/18 - Block or graft polymers
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The invention relates to: composite elements comprising a thermoplastic material and a polyurethane adhering to said thermoplastic material; a method for producing same; and the use thereof.

IPC Classes  ?

• B29C 44/02 - Shaping by internal pressure generated in the material, e.g. swelling or foaming for articles of definite length, i.e. discrete articles
• B29C 44/06 - Making multilayered articles

Abstract

The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molded product containing the polyester carbonate. The polyester carbonates according to the invention are characterized by good mechanical properties and molecular weights.

IPC Classes  ?

• C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups

Abstract

The present invention relates to aqueous dispersions containing at least one polyurethane and at least one compound with a biocidal action, the at least one compound with a biocidal action containing at least one peroxide group and being present in a quantity of between 0.01 and 1,000 mmol/kg, in relation to the total aqueous dispersion, and relates to a process for preparing a biocide-free aqueous polyurethane dispersion, said process comprising at least the steps: (A) preparing an aqueous solution containing at least one polyurethane and at least one compound with a biocidal action, the at least one compound with a biocidal action containing at least one peroxide group and being present in a quantity of between 0.01 and 1,000 mmol/kg, in relation to the total aqueous dispersion; and (B) treating the aqueous dispersion from step (A) with at least one compound with an anti-oxidative action, in order to obtain the biocide-free aqueous polyurethane dispersion, and in addition relates to the use of at least one compound with an anti-oxidative action for treating an aqueous dispersion containing at least one polyurethane and at least one compound with a biocidal action, the at least one compound with a biocidal action containing at least one peroxide group and being present in a quantity of between 0.01 and 1,000 mmol/kg, in relation to the total aqueous dispersion.

IPC Classes  ?

• C09D 175/06 - Polyurethanes from polyesters
• C08K 5/14 - Peroxides
• C08K 5/1535 - Five-membered rings

Abstract

The invention relates to decorative cosmetic compositions containing specific polyurethanes or aqueous dispersions thereof and containing constituents that produce decorative effects.

IPC Classes  ?

• A61K 8/87 - Polyurethanes
• A61Q 1/10 - Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
• A61Q 1/02 - Preparations containing skin colorants, e.g. pigments
• A61K 8/04 - Dispersions; Emulsions
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
• C08G 18/66 - Compounds of groups , , or

Abstract

The present invention relates to a process for the purification of a product stream from isocyanate synthesis, wherein the isocyanate converted to the gas phase from the product stream is continuously deposited on a rotating cooled roller and removed from the roller. The present invention further relates to an apparatus for the purification of a product stream from isocyanate synthesis, wherein the apparatus has both a heated roller and a condensation roller.

IPC Classes  ?

• C07C 263/20 - Separation; Purification

Abstract

The invention relates to the use of a separating medium, containing at least one essential oil or consisting of at least one essential oil, selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating at least two joining parts which are joined by means of an adhesive bond.

IPC Classes  ?

• C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• C09J 175/04 - Polyurethanes

Abstract

The invention relates to the use of mixtures of water and essential oils selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating multilayered composites for the segregated recycling of polymer/metal films.

IPC Classes  ?

• B32B 43/00 - Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
• C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers

Abstract

The present invention relates to novel solvent-free, blocked isocyanate prepolymers curing at room temperature, and to a method for the production thereof. Furthermore, the present invention relates to the use of said blocked isocyanate prepolymers for producing solvent-free reactive systems and to their use for producing adhesives, sealing compounds, casting compounds, molded parts or coatings, which are curing at room temperature.

IPC Classes  ?

• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C09D 175/04 - Polyurethanes

Abstract

G) 0.1-1 wt. % of at least one UV absorber. The present invention also relates to a shaped article produced from the composition. The polycarbonate composition according to the present invention has a good combination of low-temperature impact performance, flame-retardancy, hydrolytic stability, anti-UV performance, and heat resistance.

IPC Classes  ?

• C08F 14/26 - Tetrafluoroethene
• C08F 220/14 - Methyl esters
• C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
• C08K 5/5399 - Phosphorus bound to nitrogen
• C08G 64/04 - Aromatic polycarbonates
• C08G 64/18 - Block or graft polymers
• C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
• C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing a metal containing silicon
• C08K 3/34 - Silicon-containing compounds

Abstract

A cold-stable NCO-containing prepolymer obtainable from the reaction of an isocyanate-reactive component comprising polyether carbonate polyols having an isocyanate component comprising methylene diphenyl diisocyanate (MDI) with high contents of 4,4′-MDI, a method for the preparation thereof, and the use thereof in one- or two-component systems for foams, elastomers, adhesives and sealants provided.

IPC Classes  ?

• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/48 - Polyethers
• C08G 18/30 - Low-molecular-weight compounds

Abstract

The present invention relates to a thermoplastic resin substrate for a curved mirror and a method for preparing the same, and a curved mirror and a head-up display comprising the thermoplastic resin substrate. The preparation method comprises the following steps: A) heating up a mold of an injection molding machine to a temperature in a range of 130-190° C. and closing the mold, B) injecting a molten thermoplastic resin into the cavity of the mold cavity, C) applying a pressure of 300-700 bar to the cavity for a period of 5 or more seconds, D) stopping applying pressure and cooling the mold to a temperature in a range of 60-100° C. within 10-50 seconds, and E) opening the mold and taking out the molded thermoplastic resin substrate, wherein a gap of 0.3-1 mm is left between the parting surfaces of the cavity of the mold prior to applying the pressure to the cavity. The thermoplastic resin substrate according to the present invention features a large size, high dimensional stability, and low surface roughness. It can be used for future augmented reality head-up displays to realize large-area, long-distance projection and high-precision imaging, thereby satisfying the requirements for driving safety and comfort of future automobiles.

IPC Classes  ?

• B29C 45/73 - Heating or cooling of the mould
• B29D 11/00 - Producing optical elements, e.g. lenses or prisms
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process

Abstract

The present invention relates to novel high-value polycarbonate polyols, to processes for the production thereof, to polyisocyanate prepolymers obtainable therefrom and also polyurethane (PUR) and polyurethane urea elastomers which under particularly demanding applications show unique combinations of processing characteristics, hydrolysis and oxidation stability, mechanical and dynamic mechanical properties.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/44 - Polycarbonates
• C08G 64/30 - General preparatory processes using carbonates

Abstract

The invention relates to polycarbodiimides and to a process for their preparation using special catalysts.

IPC Classes  ?

• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/16 - Catalysts
• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only

Abstract

The present invention relates to a process for preparing at least one blocked polyisocyanate, comprising the following steps: (A) reacting at least one polyisocyanate with at least one thermally cleavable blocking agent to obtain at least one partially blocked polyisocyanate, (B) reacting the at least one partially blocked polyisocyanate from step (A) with at least one non-ionic hydrophilizing agent to obtain an intermediate product, and (C) reacting the intermediate product obtained in step (B) with at least one thermally cleavable blocking agent to obtain the at least one blocked polyisocyanate. The invention further relates to the use of the blocked polyisocyanate for producing coating agents, adhesives, sealants or elastomers, to corresponding coating agents, adhesives, sealants or elastomers, and to substrates that are provided with coatings obtained using the at least one blocked polyisocyanate according to the invention.

IPC Classes  ?

• C08G 18/80 - Masked polyisocyanates
• C08G 18/08 - Processes